21033101323213 has 8 divisors (see below), whose sum is σ = 24047001348480. Its totient is φ = 18021494114160.

The previous prime is 21033101323189. The next prime is 21033101323231. The reversal of 21033101323213 is 31232310133012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21033101323213 - 2²⁵ = 21033067768781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033101320213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573184393 + ... + 573221086.

It is an arithmetic number, because the mean of its divisors is an integer number (3005875168560).

Almost surely, 2^{21033101323213} is an apocalyptic number.

It is an amenable number.

21033101323213 is a deficient number, since it is larger than the sum of its proper divisors (3013900025267).

21033101323213 is a wasteful number, since it uses less digits than its factorization.

21033101323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146408107.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21033101323213 its reverse (31232310133012), we get a palindrome (52265411456225).

The spelling of 21033101323213 in words is "twenty-one trillion, thirty-three billion, one hundred one million, three hundred twenty-three thousand, two hundred thirteen".